describe('failing test', () => {
  const Fixture = () =>
    <div>
      <i>
        <b />
      </i>
    </div>;

  it('fails toHaveHTML', () => {
    expect(shallow(<Fixture />)).toHaveHTML('<div><b /></div>');
  });

  it('fails NOT toHaveHTML', () => {
    expect(shallow(<Fixture />)).not.toHaveHTML('<div><i><b></b></i></div>');
  });
});
